What sort of relationship are you looking to pursue? A "moving in with your prospective Mistress, being financially kept, and forming a life partnership" arrangement-- or a "deep friendship/trust/understanding/strictly-business/scratch an itch" sort of arrangement? Any Domme who reads this thread, and is in a position to consider your proposal, will be curious as to what level of servitude you are willing to achieve.
What are your talents and attributes as a slave? Why should a Mistress choose you as her own-- and what can you do to please her? Would you agree to be bound to a Mistress who owns other slaves, or would you be jealous and petty in such a situation?
If you are a true submissive, you have no shame, and you know it is your duty to answer every question a Lady asks.